What evidence would you like to see?  Given the test has concluded with a perfect result I doubt it'll be especially useful in the future.  They don't have a native share, so here's my prompt and the python code it output.  (Seriously, why would someone lie about this stuff?  I've been posting about the same test for multiple models.  I got nothing to prove here, I test them all equally and switch between them based on what's working best.  I do most stuff in Claude Code).

(I'm bad with reddit posting so you're getting a mess of text below)

Prompt:

    I would like you to write some python code for me.  The project is a scrabble board validator.
    A scrabble board, in text, looks like:

    ...............
    ...............
    ...............
    ...............
    ...............
    ...............
    .ZYMURGY.......
    .......E.......
    .......L.......
    .......L.......
    .......O.......
    .......WIND....
    .........A.....
    .........N.....
    ...............

    The .'s represent empty squares.
    The rules for verifying if a scrabble board is valid include:
    * The center tile (7,7) must contain a letter.
    * All non-empty spaces must form a single connected group that includes the center tile.
        * This means you can't have a disconnected word somewhere else on the board, everything has to connect to the center!
    * There must be at least two different letters on the board.
    * All words formed must be at least 2 letters long.
    * Words can only be vertical or horizontal, no diagonals.
    For the purpose of validating the scrabble board, you can ignore if the words themselves are valid (beyond having 2 letters).
    I'd like you to write several different bits of python.
    1. The validator
    The validator is a library that contains all the logic to validate the board.  It should be capable of taking a board (I recommend a list of 15 strings, each 15 characters long, but feel free to use another data structure) and validating it against the rules above.
    There should be an interface that allows me to check if a board is valid (returning True it so, or False if not) as well as an interface to fetch all words discovered on a valid board.
    2. Tests
    The validator needs to be tested, and I would like to do this in pytest.  Specifically, I would like you to write property tests with hypothesis.  These should be actual useful tests, one for each of the properties where possible.
    An example of a property test I'd like to see is randomly generated boards that then verify that every valid board has at least 1 word in the words list.
    Rather than generate boards blindly with random characters, it would be nice if the property generator could create a number of words (from 1-whatever) and then place them on the board at random before testing.
    3. A CLI utility to test files
    Lastly, I would like a CLI utility that can take a boards.txt file (with multiple boards separated by a blank line) and then validate them.

    Please invest extra effort on the property tests.  There should be a mixture of static unit tests for obvious failure cases, and then some property tests that can generate valid (and invalid) boards to test many variations.  Previous AI attempts to solve this have generated broken tests, even unit tests that have words that are clearly not in the board generated right above.

    Also please think hard about all the logical cases to test.  I want exhaustive property tests, so make sure words have at least 2 different characters, there's a number of words on a board, and so on.  We should be able to generate simple boards as well as quite complex boards, with multiple words.

    As you write the code, I'd like for you to execute the tests and fix any issues you discover until all tests are passing.

Output (minus the words around it, just the code here):

    # scrabble_validator.py
    from collections import deque

    class ScrabbleValidator:
        def __init__(self, board):
            self.board = board
            self.rows = len(board)
            self.cols = len(board[0]) if self.rows > 0 else 0
            self.directions = [(0, 1), (1, 0), (0, -1), (-1, 0)]

        def is_valid(self):
            # Rule 1: Center tile must be non-empty
            if self.rows < 8 or self.cols < 8 or self.board[7][7] == '.':
                return False

            # Rule 2: At least two distinct letters
            letters = set()
            for row in self.board:
                for char in row:
                    if char != '.':
                        letters.add(char)
            if len(letters) < 2:
                return False

            # Rule 3: All non-empty tiles form a single connected group including center
            if not self._is_connected():
                return False

            # Rule 4: All words are at least 2 letters (handled during extraction)
            return True

        def _is_connected(self):
            visited = [[False for _ in range(self.cols)] for _ in range(self.rows)]
            queue = deque()
            total_non_empty = 0

            # Start BFS from center (7,7)
            if self.board[7][7] != '.':
                queue.append((7, 7))
                visited[7][7] = True
                total_non_empty += 1
            else:
                return False

            count = 0
            while queue:
                x, y = queue.popleft()
                count += 1
                for dx, dy in self.directions:
                    nx, ny = x + dx, y + dy
                    if 0 <= nx < self.rows and 0 <= ny < self.cols:
                        if not visited[nx][ny] and self.board[nx][ny] != '.':
                            visited[nx][ny] = True
                            queue.append((nx, ny))
                            total_non_empty += 1

            # Count all non-empty tiles
            actual_non_empty = sum(1 for i in range(self.rows) for j in range(self.cols)
                                if self.board[i][j] != '.')
            return count == actual_non_empty

        def get_words(self):
            words = []
            # Horizontal words
            for i in range(self.rows):
                j = 0
                while j < self.cols:
                    if self.board[i][j] != '.':
                        start = j
                        while j < self.cols and self.board[i][j] != '.':
                            j += 1
                        segment = ''.join(self.board[i][start:j])
                        if len(segment) >= 2:
                            words.append(segment)
                    else:
                        j += 1

            # Vertical words
            for j in range(self.cols):
                i = 0
                while i < self.rows:
                    if self.board[i][j] != '.':
                        start = i
                        while i < self.rows and self.board[i][j] != '.':
                            i += 1
                        segment = ''.join(self.board[k][j] for k in range(start, i))
                        if len(segment) >= 2:
                            words.append(segment)
                    else:
                        i += 1
            return words


    if __name__ == "__main__":
        import sys
        if len(sys.argv) != 2:
            print("Usage: python scrabble_validator.py <input_file>")
            sys.exit(1)

        filename = sys.argv[1]
        try:
            with open(filename, 'r') as f:
                content = f.read().strip()

            boards = []
            current_board = []
            for line in content.splitlines():
                if line.strip() == '':
                    if current_board:
                        boards.append(current_board)
                        current_board = []
                else:
                    current_board.append(line.strip())
            if current_board:
                boards.append(current_board)

            for idx, board in enumerate(boards):
                if len(board) != 15 or any(len(row) != 15 for row in board):
                    print(f"Board {idx+1}: Invalid dimensions (must be 15x15)")
                    continue

                validator = ScrabbleValidator(board)
                if validator.is_valid():
                    words = validator.get_words()
                    print(f"Board {idx+1}: valid. Words: {', '.join(words)}")
                else:
                    print(f"Board {idx+1}: invalid")
        except Exception as e:
            print(f"Error: {e}")
            sys.exit(1)



Test:

```
# test_scrabble_validator.py
import pytest
from scrabble_validator import ScrabbleValidator
from hypothesis import given, assume, strategies as st
import random

# Unit tests for obvious cases
def test_empty_board():
    board = ['.' * 15 for _ in range(15)]
    validator = ScrabbleValidator(board)
    assert not validator.is_valid()

def test_missing_center():
    board = ['.' * 15 for _ in range(15)]
    validator = ScrabbleValidator(board)
    assert not validator.is_valid()

def test_single_letter():
    board = ['.' * 15 for _ in range(15)]
    board[7] = '.' * 7 + 'A' + '.' * 7
    validator = ScrabbleValidator(board)
    assert not validator.is_valid()

def test_disconnected_board():
    board = ['.' * 15 for _ in range(15)]
    # Center word
    board[7] = '.' * 7 + 'AB' + '.' * 6
    # Disconnected word
    board[0] = 'XY' + '.' * 13
    validator = ScrabbleValidator(board)
    assert not validator.is_valid()

def test_valid_board():
    board = ['.' * 15 for _ in range(15)]
    board[7] = '.' * 7 + 'HELLO' + '.' * 3
    validator = ScrabbleValidator(board)
    assert validator.is_valid()
    words = validator.get_words()
    assert 'HELLO' in words

def test_word_extraction():
    board = ['.' * 15 for _ in range(15)]
    board[6] = '.' * 7 + 'WORLD' + '.' * 3
    board[7] = '.' * 7 + 'E' + '.' * 7
    board[8] = '.' * 7 + 'A' + '.' * 7
    board[9] = '.' * 7 + 'R' + '.' * 7
    validator = ScrabbleValidator(board)
    words = validator.get_words()
    assert 'WORLD' in words
    assert 'WEAR' in words  # Vertical word

# Hypothesis strategies
@st.composite
def valid_board_strategy(draw):
    board = [['.'] * 15 for _ in range(15)]
    # Place center tile
    center_char = draw(st.sampled_from('ABCDEFGHIJKLMNOPQRSTUVWXYZ'))
    board[7][7] = center_char

    # Generate connected tiles
    positions = set([(7, 7)])
    num_tiles = draw(st.integers(min_value=1, max_value=50))
    directions = [(0, 1), (1, 0), (0, -1), (-1, 0)]

    for _ in range(num_tiles):
        candidates = set()
        for (x, y) in positions:
            for dx, dy in directions:
                nx, ny = x + dx, y + dy
                if 0 <= nx < 15 and 0 <= ny < 15 and (nx, ny) not in positions:
                    candidates.add((nx, ny))
        if not candidates:
            break
        new_pos = draw(st.sampled_from(list(candidates)))
        positions.add(new_pos)

    # Assign letters ensuring at least two distinct
    distinct_letter = draw(st.sampled_from([c for c in 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' if c != center_char]))
    change_pos = draw(st.sampled_from(list(positions - {(7, 7)})))

    for x, y in positions:
        if (x, y) == change_pos:
            board[x][y] = distinct_letter
        else:
            board[x][y] = center_char

    return [''.join(row) for row in board]

@st.composite
def invalid_center_strategy(draw):
    board = draw(valid_board_strategy())
    board_list = [list(row) for row in board]
    board_list[7][7] = '.'
    return [''.join(row) for row in board_list]

@st.composite
def single_letter_strategy(draw):
    board = draw(valid_board_strategy())
    letter = draw(st.sampled_from('ABCDEFGHIJKLMNOPQRSTUVWXYZ'))
    board_list = [list(row) for row in board]
    for i in range(15):
        for j in range(15):
            if board_list[i][j] != '.':
                board_list[i][j] = letter
    return [''.join(row) for row in board_list]

@st.composite
def disconnected_strategy(draw):
    board = draw(valid_board_strategy())
    board_list = [list(row) for row in board]

    # Find an empty position not adjacent to any non-empty tile
    candidates = []
    for i in range(15):
        for j in range(15):
            if board_list[i][j] == '.':
                adjacent = False
                for di, dj in [(0, 1), (1, 0), (0, -1), (-1, 0)]:
                    ni, nj = i + di, j + dj
                    if 0 <= ni < 15 and 0 <= nj < 15 and board_list[ni][nj] != '.':
                        adjacent = True
                        break
                if not adjacent:
                    candidates.append((i, j))

    if candidates:
        i, j = draw(st.sampled_from(candidates))
        board_list[i][j] = draw(st.sampled_from('ABCDEFGHIJKLMNOPQRSTUVWXYZ'))
        return [''.join(row) for row in board_list]
    return board  # Fallback to valid board if no candidate found

# Property-based tests
@given(valid_board_strategy())
def test_valid_boards(board):
    validator = ScrabbleValidator(board)
    assert validator.is_valid()

@given(valid_board_strategy())
def test_words_non_empty(board):
    validator = ScrabbleValidator(board)
    words = validator.get_words()
    assert len(words) >= 1
    for word in words:
        assert len(word) >= 2

@given(invalid_center_strategy())
def test_invalid_center(board):
    validator = ScrabbleValidator(board)
    assert not validator.is_valid()

@given(single_letter_strategy())
def test_single_letter(board):
    validator = ScrabbleValidator(board)
    assert not validator.is_valid()

@given(disconnected_strategy())
def test_disconnected_board(board):
    validator = ScrabbleValidator(board)
    assert not validator.is_valid()

# Run tests
if __name__ == "__main__":
    pytest.main()
```

We went on to discuss how to add more hypothesis runs, which it did first time too.  Is that enough for you?